Heel breasting machine



May 28, 1935.

\ T. H. SEE'LY ET AL HEEL BREASTING MACHINE 5 Sheets-She et 1 Filed Nov.16, 1932 i ll llll III II.

M W g May 28, 1935. -T. H. sEELY ET AL HEEL BREASTING MACHINE Filed Nov.16, 1952 5 Shets-Sheet 2 T. H. SEELY Er AL HEEL 'BREASTING MACHINE May28, 1935.

Filed Nov. 16, 1932 5 Sheets-Sheet I5 //VVENTUR'5.

Fig.3.

May 28, 1935. x H. SEELY El AL HEEL BREASTING MACHINE S Sheets-Sheet 4Filed NOV. 16, 1952 /A/ME/VWFQ WM Fig. 4.

30315 W i R. f

May 28, 1935.

' T. H. SEELY ET AL HEEL BREASTING MACHINE Filed Nov. 16, 1932 5Sheets-Sheet 5 Patented May 28, 1935 nd Milan Ballard, to United Shoe Machinery Corporation, PatersomN; J a corpora-v v tion of New Jersey theheights of lasts and variations in the thick nessibi the, solematerials, inline with the breast- I may terminate with the knifepositioned accuator'for predetermining ing knife, all of which makeeffect antadjustment of the breasting knife whereby the knife twill-cut,a'chip from the heel, breastwithout penetrating the shank of the shoe.An obj ect- ,of the'present invention is to provide; laqheel rbreastingmachine; which may be depended upon, to cut completely through thebreastgof an attachedheelwithout injuring, the shank of thetshoep t"5113313, orderto, measure the. stroke, or", the breasting knifeto causetheknife to come to rest accurately positioned at the base of the heel,it is proposed by the present invention, to provide a measuring means,arranged to operate inadvance of, the knife stroke: wherebygthetermination of the knife stroke maybe arranged tooccur as the drivingmechanism comes to the bottom' of its strokeythusobviating'thepossibility of the knife being carried beyond the base ofthe heel. With this; in view, a feature of the invention contemplatesthe prcvisionaina heel breasting machine, of abreastin g knife and aknife actuator arranged tol providea variable lostzmotion between; theactuator and'the knife at the} beginning of the strokeof the actuator;

In order that the stroke of the breasting knife ratelyf at the base ofthe. heel to be breasted," it is further 'proposed to provide meansoperating in advance of theknife stroke for gaging the limit of, theknifestroke from the shank of the shoe tobe breasted, and in, accordancewith a feature of 3 he invention, there are provided a shank engagingmeans "and connections between said {shank engaging means and the knifeactuthe position from which the actuatoroperates. 1 p

' It is further proposed'to employ a shank en gaging member to measurethe extentof the breasting cut,;and to that endand in accordance with'afeature of the invention the illustrated heel 'breasting machine isprovided with connectionsfromthe shank engaging member to'the knifeactuator for measuring, in advance. of the knife stroke, the efiectivestrokeof the actuator. tItis desirable that the elevation 01" the heelcutting edge November 16,1952, Serial No.,e 42,.9.20;

(Cl. 12-347) remain unchanged during the kniiestrokein ,Thomas H.SeelyQll/Ielrose Beverl Mass., assignors orderithat the knife may cometo, rest with its 7 accurately positioned at the base of the heel. To;this end, Wis-proposed that the sole materials in liner'with, theb'rasting' knifebe compressed; prior to the: knife stroke sufiicientlyto take all of. the y ieldtherefrom and to bring them down-firmlyon'tothe last in order that they may.- rema'n fixed during the knifestroke and not subject. to: depression by the thrust of the knife.result it is proposed to; apply pressure to the shank and, accordingly,a feature of-lthe inven:

'tion consists in the provision in aiheel breasting machine: of a shank,presser, means, energized by the next preceding cycle of theimaehineand normally disconnected from said presserfor ap-v plying pressuretheretoyarid means. for connecte ing said presser to saidpressureapplying means at the beginning of thejgpower cycle; z

It is dsirablethattheap lication of pressure be timed to take efiect inadvance ofthe actuation of the, breasting knife inorder that thestrokenof the knife may be measured after the elevationzofythe shank hasbeen fixed. Withthis in. view an object of the'inventionuis so: toforeganizewthepower pressure means with relation to the knifeand itsoperating mechanism: that the stroke of the knife will not commenceuntil after the power pressure has been effected.

Accordingly, a featureof the invention-consists in timing theapplication of pressure to the shank presser to take effect before the.stroke of the actuator commences.

his proposed to apply clamping pressure to the tread of the-heel to bebreasted as well as'tc the shank of the shoe and to' that end, a featureof the invention consists in the provision in a heel breasting machine;of a=shank presser, a presser post, a heel treadplate, aheel platepost, and means for applying, distributed powere producedpressure tosaicl'posts, It is desirable that these pressures be equal in order thatthere may beno misplacement of-the shoe upon the jack asa consequence ofthe poweroprese sure and accordingly, :means for effecting theapplication of, such equal pressures constitutes In ordento, effect thisthe heel tread of a shoe to be breasted.

' ment :with the breasting knife.

. stop employed as 1 to' remove a substantial itself because of the factthat the knife comes to rest at an elevation relatively remote from Itis proposed to provide means for varying the retracted position of thebreasting knife in order that the knife may come to rest at anelevation, relatively to the tread of the heel to be breasted, whichwill permit gaging of the breasting position of the shoe relatively tothe breasting knife. Accordingly a feature of the invention contemplatesthe provision in a heel breasting machine of a knife slide in which thebreasting knife is mounted, yielding means for holding the knife slidein retracted position, and means for adjusting the retracted position ofthe slide whereby the knife may be located at an eleva-' tion such thatthe breasting position of a shoe may be accurately gaged thereby.

It is of the utmost importance that the positioning of a shoe,preliminary to' the heel breasting operation thereon, consume the leastpossible time, and it is an object of this invention so to organize thejack and its supporting mechanism that the positioning of a'shoe may bequickly and conveniently effected. Accordingly, a feature of theinvention contemplates theprovision in a heel breasting machine of ashoe supporting jack yieldingly supported and arranged. forstraight-line movement to and from operative position.

'It is an object of the invention to provide for alateral movement ofthe shoe in order to permitthe shoe to be brought into proper aline- Tothis end there is provided, in accordance with a feature oftheinvention, a jack carrier arranged to permit rotation of the jackabout a horizontal axis extending longitudinally of the jack and shoebottom engaging means for clamping a shoe on the jack and thus holdingthe jack from rotating during the breasting operation.

In order to permit the shoe bottom to be maintained in a horizontalposition during the swinging of the jack about its horizontal axis it isdesirable that the shoe be mounted on the jack with capacity for alimited rocking movement about the toe and heel supports and it is alsodesirable that an auxiliary support be provided'for maintaining suchhorizontal arrange- 1 ment of the shoe and relieving the operator of theburden of holding the shoe in position on the-jack after the jack hasbeen brought into operative position. Accordingly, a feature of theinvention consists in the provision in a heel breasting machine of shoesupporting means comprisinga toe support, a heel support and a heel stoparranged partially to embrace the back of a heel 'to be breasted.

In order to secure the shoe in position to be operated upon by thebreasting knife it is proposed to employ, as one of the clampingmembers,' a heel stop which may, or may not, be the an auxiliary shoesupport, and accordingly there is provided, in accordance with a featureof the invention, means for clamping a shoe upon the jack comprising ashank presser, a'heel tread plate and a heel stop.

It is usual for the breasting knife to be'beveled on its forwardsurface. If the knife is required chip from the heel, as is usually thecase, the engagement of the chip with .the beveled'surface of the knifeurges the knife. away from its prescribed path of movement. If the'knifeis securely held so that it cannot spring away from its path of movementthe engagement of the chip with the beveled surface of the knife tendsto tilt the shoe backwardly upon the last pin. It has been found thatsuch tilting of the shoe makes it difficult to produce a straight,smooth breasting out. In order to produce a straight, clean cut whichwill require only a minimum of scouring to produce a finished heelbreast, it is proposed to eliminate the tendency of the shoe to tiltbackwardly upon the last pin by looking a heel stop in heel engagingposition and thus preventing any backward movement of the heel.Accordingly, a feature of the invention contemplates the provision in aheel breasting machine of a heel stop arranged to engage the back of aheel to be breasted, and means actuated by the cutting thrust of thebreasting knife for locking the heel stop in heel engaging position.

These and other features of the invention will appear more fully fromthe following detailed description when read in connection with theaccompanying drawings and will be pointed out in the appended claims.

In the drawings,

Fig. 1 is a front elevation of a machine embodying this invention;

Fig. 2 is an enlarged side elevation of the upper portion of themachine;

Fig. 3 is an enlarged side elevation of the lower portion of themachine;

Fig. 4 is a horizontal section taken substantially on the line IVIV ofFig. 2, with certain parts at the front of the machine broken away;

Fig. 5 is an enlarged fragmentary view of certain parts in the head ofthe machine;

Fig. 6 is a detail view of a heel stop;

Fig. 7 is a sectional elevation taken substantially on the line VII-VIIof Fig. 3; V

Fig. 8 is a fragmentary plan view on the same scale as Fig. 2illustrating certain parts in the head of the machine;

Fig. 9 is a perspective view of a heel tread plate and its carryingmember;

Fig. 10 is a fragmentary vertical section through the center of a heelwhich is being breasted;

Figs. 11 to 14, inclusive, are fragmentary views illustrating parts ofthe knife actuating mechanism in successive positions during the cycleof operation; and

Fig. 15 is a vertical section taken substantially on the line XVXV ofFig. 4.

The invention is illustrated as embodied in a machine for breastingheels after they are attached to their shoes. The breasting knife 20,

is power actuated by a motor 22 (Fig. 1) through suitable connectionsincluding a constant stroke knife actuator 24 arranged to impart avariable stroke to a knife slide comprising a knife supporting crosshead 54 and a pair of parallel bars 56 to which the cross head issecured. The variation in the knife stroke is effected by providing avariable lost motion at the beginning of the stroke of the actuator. Theextent of the knife stroke is predetermined by measuring meanscomprising a shank presser 26 (Fig. 10) arranged to engage the shank ata location sub-. stantially adjacent to the heel to be breasted andconnections between the shank presser and the knife actuator 24 formeasuring in advance of the stroke of the actuator the extent of itslost motion.

A shoe to be breasted is mounted upon a jack 28 (Fig. 2) supported upona jack carrier 30 ti on .by-a torsion spring grooves formed in platesaooazne machine column and diverging forwardly there- (Fig. 4) andarrangedforstraight line hori-l zontal movement relatively to J the:carrier. in order to move the shoe to. and frompositionto beoperatedupon by the breastingknife,hereinafter referred to as :thebreastingtposition;

The shoe is securely clamped upon the jack by the shank presser 26 and aheeltreadplate 32s (FigsLEJ and to, which equal pressures are applied bya power (compressed spring; (Fig. 1) through connections hereinafterdescribed. The shoe is clamped at the back. of the heel against a heelstop 36 (Figs, 6 and 10).. arranged to be locked in heelengaging.positionyin order to prevent any tilting of the shoe about thelast pin during the breasing cut. Theshoe support: ing jack 28 isclamped in breasting thevpressure applied to the shank presserQZG andtheheel plate 32, and this pressure is also employed to actuate the devicesfor locking the heel stop 38 in heel engaging position, s The motor 22transmits power to the breasting knife through a combined driving wheeland balance wheel 38 (Fig. 3) andmechanism comprising a driving shaft 40arranged to be connected to the wheel by a one revolution clutchmechanisim 300, a crank pin 42 formed integrally with the driving shaftat its forward end, and connections between the crank pin and the knifeactuator 24 comprising a screw 44 pivoted to the actuator, a wing nut 46carried by said screw, and a connecting link or yoke 48arranged toarrest the rotation of the nut and connect the nut and the crank pin'42.The breasting knife 20. is retracted and maintained in retracted posi-50 (Fig. 1 arranged to impart an upward pressure to the knife actu ator2.4 and through the actuator .to the knife slide.

Referring particularly to the breasting knife and its actuatingmechanism, as shown inFig. 1', thelknife ismounted upon a cross head 54secured to the parallel vertical bars; 56. Near their lower ends thebars 56 areprovided with guideways in the. form of grooves 6611501 thereception of the actuator 24. The cross head 54 is arched somewhat andhas provided in its front face recess 5'! extending upwardly from itslower edge toprovide clearance for the breasting knife. Thecross head 54is also provided with knife supporting brackets 59 extending downwardlyand inwardly from opposite sides of the cross head into position toengage opposite sides of the breastingfknife 20. The breasting knife hassliding engagement within 58 and 60 removably secured to the brackets59. In order to expedite the removal of the breasting knife, the edge ofthe plate 58 adjacent to the cross head 54 is arranged to engage ashoulder in the cross head arranged at a slight angle. to] the side ofthe breasting knife, and the plate 58 is provided with a slot 62 for thereception of a clampingscrew 54 which slot is arranged in parallel.relation to said shoulder in order to permit the plate5 8 to move intoand out of position to engage the breasting knife. In order to afford avertical adjustment of the breasting knife an adjusting screw 65 isprovided having interlocking engagement with the upper end of thebreasting knife. At their upper ends the parallel bars 5% are slidablymounted in brackets 68 located atthe head of the machine column 10 anddiverging forwardly therefrom' At their lower ends the parallel bars 55are. slidably mounted in brackets 12 located approximately midway, ofthe height of the positionby position toengage the head of the screw:4.4

from at thesame angle as the. brackets; 68,.

The knife. actuator 24 has a constant stroke imparted thereto bythecrank pinv42 (Figs. 1 and. 3) V which acts through or yoke 48; wing nut46' and screw 44 as above described; Thescrew 44 is'pivotedlon a studsecured to the actuator:24. The: connecting link 48 is pivotallymounted'upon the cranktpin 42 and has upwardly extending arms (Fig. 1);which curve" outwardly for the reception of the win nut thereb'etween. Aclamping block 16' (Fig. 1 is secured to. the vupper ends of the armsfor clamping engagement with the wing nuti46. The

clamping block .16 is slidably supportedupon the. square headll-TI ofthe screw 44 by gibsl8 (Fig. 7);. formedintegrally with the clampingblock 16. and extending upwardly therefrominto at itscorners. Theclamping block 'IBhas a central opening formed therein". to provideclearance for the i screwi.44,'and the gibs 18 aretarranged toprovideclearancee for therscrew 44 and. for the actuator: 24. The head11 of: the screw .44 is slotted to=embrace the actuator (Fig; 3 Asherein illustrated the actuator is in the form of a cross head slidably'mounted in grooves 66 formed in the parallel bars 56. The actuator isnormallyheld at the limit of its e1evation"'by the torsion springandconnections between the springs and the actuator comprising a pairthe connecting link erably carried by a sleeve 51* (Fig 3) journaled j.

on the hub 53 of the connecting link 48 and is confined between thelinkand a" disk secured to the end of the crank pin42. "In its elevatedposition the actuator supports the breasting knifeassembly by engagementwith the parallel bars=5$" at vxthe upper extremities of the grooves 66*(Fig; *1). l 1

- In order that the actuator; whichhas a constant stroke, may impart tothe breasting knife a variable stroke the extent of which is determinedin advance of the stroke of the actuator, means is provided foradjusting the actuator in the direction of its stroke in order toprovide a measured lost motion at the beginning of the stroke of theactuator. In the illustrated machine the adjustment of theactuatoroperates to measure a distance between the actuator and the lowerextremities of the grooves 66 which distance is equal to the differencebetweenthe extent of the stroke of the actuator and the extent of therequired breasting cut.. The adjustment of the actuator is arrested bythe engagement. of the shank presser 26 with the shank of the, shoe tobebreasted. During theadjustment of the actuator the breasting knifeassembly descends with the actuator until said assembly is arrested byengagement of the edge of the knife with the heel tread, and during theremainder of its adjustment the actuator travels downwardly through thegrooves 66 and comes to rest with the bottom of the actuator apredetermined distance above the lower; extremities of the grooves 66which distance determines the extent of the lost motion of theactu ator.The point at. which the actuator comes to rest is determined by theengagement Of; the shank presser 26 withthe shank of the shoe to bebreastedl Thusit will bet-seen that the-glost crank pin 42to theactuator.

motion of the actuator is accurately measured by the engagement of theshank presser 26 with the shank of the shoe to be breasted. The extentof the lost motion may be varied by a vertical adjustment of thebreasting knife relatively to the knife supporting cross head 54 wherebythe engagement of the. edge of the knife with the heel tread may begagedto take effect at the desired the knife actuator.

Should the weight of the knife assembly be sufficient to cause a slightpenetration of the heel by the breasting knife as it comes to rest onthe heel tread, such penetration of the heel by the breasting knifewould be inconsequential since the descent of the knife incidentalthereto would be accompanied by a, like descent of the shank presserthereby reducing that descent of the shankpresser which occurs after thebreasting knife comes to rest on the heel tread and proportionallyincreasing the lost motion-of the actuator. Such increase of lost motionwould,

,of. course, be followed by a corresponding decrease in the effectivestroke of' the actuator. It will thus be seen that a penetration of theheel tread by the breasting knife as it comes to rest thereon cannotthrow out of adjustment the devices for measuring the knife stroke.

"The adjustment of the actuator, above referred to, is arrested at theend of the spring clamping of the shank presser hereinafter describedand in advance of the locking of the wing nut 46 which operates toconnect the Consequently the elevation of the actuator at the beginningof its stroke is determined by the final elevation of the bottom of theshank of the shoe to be breasted. The length of the stroke of theactuator being constant, it follows that the limit of said stroke isalso determined by the final elevation ofv the shank and, consequently,the limit of the knife stroke is-likewise so determined. It follows thatthe knife, when properly adjusted by the hand screw 65, will come torest with its cutting edge positioned accurately at the base of theheel.

Referring now more particularly to the construction of the illustratedmachine, the adjustment of the actuator is effected by the succes-,siveoperation of the .treadle 90 and the spring clamping mechanismhereinafter described. The treadle 90 depresses the actuator 24 throughconnections comprising a treadle spring 92 (Fig. 1) and a foot piece 88mounted in the lower end of a post 84 and arranged to rest on the hub ofone of the links 80. The treadle spring 92 connects the lower end of thepost 84 to a lug 94 formed in the treadle 90, the post 84 being,slidably mounted in a sliding head 86 which forms a part of the powerclamping mechanism. The stroke of the actuator 24 is effected by thecrank pin 42 at the forward end of the driving shaft through connectionshereinbefore described. In order that the adjustment of the actuator maybe limited by the engagement of the presser 26 with the shank of theshoe to be breasted, the presser is mounted in the post 84 through whichthe adjustment of the actuator is effected. As the treadle 90 isdepressed the post 84 slides downwardly through the sliding head 86 andthe foot piece 88 depresses the actuator 24 against the resistance ofthe torsion spring 50. The breasting knife assembly moves downwardlywith the actuator 24 and the post 84 until the downward movement of theknife assemblyis arrested by the engagement of the point in theadjustment of knife 20 with the tread face of the heel. The shankpresser 26 being secured to the post 84, the knife 20 and the shankpresser move downwardly in unison during the first stage of thedepression of the treadle 90 and consequently I their'relation to eachother is unchanged until the downward movement of the knife is arrestedbyits engagement with the heel of the shoe. Continued depression of thetreadle thereafter causes the shank presser to move downwardly relativeto the breasting knife and causes a movement of the actuator 24relatively to the parallel bars 56 of the knife assembly as permitted bythe grooves 66 in the bars 56 in which the ends of the actuator arearranged to slide vertically.

Referring now to the screw nut 46,-during the depression the screw 44passes through the wing nut 46 and. the nut spins upon the screw inorder to accommodate itself to such movement thereof, the pitch of thescrew threads being such that the screw may pass freely through the nutwhile the nut'is maintained at a fixed elevation. The wing nut 46 may besupported in any convenient manner. In the illustrated machine means forsupporting the nut consists of an arm 96 (Fig. 1) pivoted to anextension of the connecting link 48, a yoke 98 pivotally mounted on thearm and arranged to embrace the hub of the wing nut 46, and a pair ofrolls I60 (Fig. '7) carried by the ends of the yoke 98 and extendinginwardly therefrom into a concentric groove formed in the hub of thewing nut, said rolls acting as carriers for the nut and permitting thenut to be rotated freely by the screw 44 as it passes therethrough. Thewing nut 46 is normally held in contact with the under surface of theclamping block I6 by a coiled spring I02, (Fig. l) the lower end ofwhich is mounted on the forward extension of a pivot pin I 64 (Fig. 3)upon which the yoke 98 is mounted and the upper end of which is mountedupon a stud I06 extending forwardly from the clamping block I6. In orderto hold the nut 46 out of contact with the clamping block 15 during thedepression of the shank presser 26 a cam I08 is secured to the free endof the arm 96 and arranged to engage a roll IIU carried by the disk 55secured to the crank pin 42, the free end of the arm 96 being offsetforwardly to bring the cam I98 into position to engage the roll III](Fig. 3). The cam I08 is so arranged relatively to the roll that themachine comes to rest with the rise of the cam in contact with the roll,and the rise of the cam is extended sufficiently to hold the wing nut.46 out of contact with the clamping block I6 until the powercompression of the shank presser 26 has been effected. As the roll II I)rides off the rise of the cam I08 the spring I02 swings the arm 96 aboutits pivot and brings the clamping surface of the wing nut into contactwith the under surface of the clamping block 16. Downward movement ofthe clamping block after the wing nut has been thus brought into contacttherewith clamps the nut and the block, thus completing the connectionbetween the crank pin 42 and the actuator 24 whereby a constant strokeis im parted to the actuator.

It is desirable that the shank presser be arranged to engage the shankof the shoe to be breasted close up to the breast of the heel and it isalso desirable that the shank presser be arranged for self adjustment tovarying inclinations of shanks. In the illustrated machine the 44 andthe wing of the actuator been stated, the'pendants I16 are equally bellcrank lever ratchet teeth formed in the presser post and heel platepost, respectively. The ratchet teeth and their pawls are arranged toengage during the downward movement imparted to the slid-' ing' head 86by the power spring 34. The pawls are mounted in pendants I16- (Figs. 2and 15) pivotally mounted upon a rocking carrier I18 which in turn issecured to a rod I carried by the sliding head 86. The pawls arearranged to slide in sockets I8I in the pendants I16 (Fig.

l5) and are spaced apart a 'distance,-measured 15 in terms ofratchetteeth, equal to one-half a tooth more than a prescribed number.The

pawls" I10 are actuated by compression springs I82 seated 'atithe baseof the sockets I8I and I, the range of movement of each pair of thepawls 20 I10 is limited by a block I84 secured within a groove formed inits pendant I16 and arranged to engage shoulders formed on the pawls byslabbing oil a portion of each pawl as shown at I11 in Fig. '15. Saidblocks I84 also operate to prevent rotation of the pawls therebymaintaining them in position properly to engage with the ratchet teeth.In order to maintain the pendants I16 in alinement with the presser post8 4'and-the heel plate post I62, respectively, said pendants haveforward extensions I88 which are bifurcated to permit them partially toembrace said posts (Figs. 2 and 4).

In order thattlie pressure of the spring 34 may be distributed betweenand preferably imparted equally to the presser post 84 and the heelplate I62 the pendants I16 are arrangedat opposite sides of the rod I80and equally spaced therefrom. The pendants are pivoted between a. crosshead I formed integrally with the carrier I18 midway'between'i'ts endsand ears I 86 projecting laterally in opposite directions from oppositeends of the carrier. In order to maintain'the pawls I10 normallydisengaged from their ratchets a coil spring 200 is secured at one endto an extension 20I' (Fig. 4) of the sliding head 86 and atits'op'posite end to the carrier I18 whereby saidcarrier is urged awayfrom the posts 84 and I62. The presser' post84 and heel plate post I62are thus permitted to be retracted at the end of a cycle of operationswithout interference from the pawls I 10 i In order to bring the pawlsinto ratchet engaging position prior to the release of the power spring34 and to maintain them in such posi tion during the cutting stroke ofthe knife a bell crank lever 202 is pivoted on an extension 204 of thesliding head 86 '(Figs. 2 and 4) and has" freely mounted at the ends ofits vertical arms across pin 206 having a V-shaped notch formed therein(Fig. 4) for the reception'of the wedged end of the rod I80. The rod isheld against the cross pin by the spring 200'. The V-shaped notch,acting on the wedged end of the rod, yieldingly holds the cross head I90of the carrier I18 horizontalwhile permitting the carrier torocksufficiently to distribute the pressure of the power spring 34 betweenthe presser post 84and the heel plate post I62. As has spaced from therod I80 and consequently the I18 acts as an equalizing lever during theactuation of the spring 34to cause the force of the spring to bedistributed equally between the presser post 84 and heel plate post I62.The 202 is actuated by a cam 208 lever 2! 6 is arranged to'actuate rodI64. The lever '2I6 ispivoted to the-machine frame by a shaft 2I8' andcarries'at its' Wing nut 46 the pawls and yieldingly supported 'ber, forexample; upper end of a vertical arm rigid with the arm 236 by formed inthe tube 234. tation of the tube 234 carrier (Fig. 3) secured to thedriving shaft 40 by connections comprising a link 2I0 pivoted at itsupper end to an arm 203 of the bell crank lever 202 and at its lower endto a horizontal arm of a bell crank lever 2I2.- The vertical arm of thebell crank lever 2I2 carries a cam roll -2I4 arranged to ride on the'cam 208.

It will be seen 1" thatthe cam roll 2I4 will be held toward thef cam 208by'the tension 0f the spring 200 which actson the pawl carrier I 18. Inorder-to elevate the sliding head 86 and at the same'time to compressthe power spring '34 a triangular the connecting lower'end a cam roll220 arranged" to ride on a cam 222 secured to the shaft extremity, asseen in Fig.3, the lever 2I6- is pivoted to the lower end -"of theconnecting rod I64. In order to provide a' bearing for the bell cranklever 2I2 the shaft 224 connecting the triangular lever 256 and theconnecting rod I64 is extended sufficiently to permit said lever to bepivoted thereto. In order toadjust the compression of the powerspring-34 the collar 226 upon which the'lower end of the spring isseated is threaded on the connecting rod I64 and provided with sockets228 for the reeption of a turning tool.

The timing of the cams 208 and 222 and the cam I68 which controls theclamping of the is such that the cam 206 "operates at the beginning ofthe power cycle to'b'ring I10 into ratchet engaging position andthereupon the cam'222 operates to'release the power spring 34, therebypermittingsaid spring to impart shank presser 26 and the heel treadplate 32, and after the a downward pressure to the 40.Z At itsforwardpower pressure has been eifect'ed the cam I08 operates to release thecoiled spring I02, permitting the wing nut 46 to be'brought into contactwith the clamping block--16. The

above-described timing ofthe cams 208, 222 and I03 is desirablesince itinsures that thestroke of the breasting knife will be measured from the'finalpositions of the shank and heel tread after the pressing means hasoperated to take all'the yield but of the sole and bring it down firmlyagainst the last.

As herein illustrated, the jack 28 (Figs. 2 and 4) is mounted forstraight line horizontal movement upon the jack carrier 30 (Fig. 4)which is slidably mounted upon the connecting rod I64 thereon by thecompression spring 232 seated on the machine frame The connectionbetween the at 233 (Fig. 3) jack and its carrier comprise a horizontalmemthe tube'234, mounted at the 236 formed integrally with the jack 28.

a' strut 238 (Fig. 2)

The tube 234 is made one end of which is supported in asocket formed atthe rear of the jack base and the other end of which is received withina recess or hole In order to permit roand a corresponding swingingmovement of transverse adjustment of a shoe relatively to the breastingknife may be eilected, the tube is supported upon guide rolls 240 and242 pivoted to'the jack carrier 30 and grooved for the reception of thetube. The roll 242 is positioned at the rear end of the carrier andabove the tube 1 .234 andthe roll' 240 is' positioned beneath the tubeand forwardly of the roll 242, thereby per-,

the jack 28 whereby mittingxthe'wtube to be2he1dz1in engagementwithtrblockt 266iduringmheiiswingingof the. 1inks.;:: Be-i mthelguidelrolls v by? the: :weightifiof the jackzil'; Thenv tween the'arcuate surfacesifihthe clamping block-.1 jack carrier 30:15preventedtfromswinging-about .1266 is Iextended :downwardlysto: providetgnidingrz i the iconnectingrod .1164 :by a bellcrahklever 244 surfaces2'" for therlinks 160:: In ordento prevents (Fig.4) 1 pivotcd'torthemachineiframe-andhavanyplay of the shank'rl 58iof the-:yokeulfi betweeningthetendwof its horizontal arm 246' pivotedwto' wtheflinks 160 a: hub213"(Fig. 8) -is formed at thezm an ext'ension of the- .stud248 -iuponwhichlithe end 0f-the1shank:.l58 and positioned between'theim guide'roH240 i's pivotedila Theivertical arm 25fl iinnensurfaces .of the It isapparent that. v Of the bellcrank lever 244 15 provided with an I theclampingiof the1inks l 00 against the clampingtza; "adiustableabutmentscreww252i" arranged to en 'block' Zfifitvill lock the heel stopiifiainuadjustedi gage'cthe machine iframeiinl. orden- .to lirifitathe?position and preventanymovement thereof dliri-l upward movement :of the:jackwearrien'wlbymhe ing theibreasting operation; .It may 1 b t m a p in--2 3 The forward movementxof the ja k tnattheiorce of the clampingengagement of the 28i;s limited by theiengagementeithestrut 238w1 l |agit .wth clamping l k 256 :is may *With the guide roll 24o: Inlitsforwardiposition z s dib 'fheieutting thru t f th k ife; w 1 is p ven iom w g by t e' 'The heel stop 36 is normally lheldat the forgagement- 0fa'pair of guideurollsw2541fiFig; 4) ward limit of its Lmovement: by a,coiled springfl; with horizontal ribs 256: formed in the base of: z59:;s,.2 and 3 connecting t links ag a the jack at oppositesidesthereofj.Afith6iIifOr-" the lever V262; said pring 3130 wgperates wtg 4 ward endsthe ribs 256 are terminated r a maintainv the: forward endof the leverZBZ kat w d f -th f rward x mi y f the j k the -lim it of its elevationwhich limit is pre- I base in order-that -saidmibs may trav l 'byscribed by the -engagement of an adjus tablew uide ro1ls 254 as:the1=shoe is :brought into *abutment screw 21!] With-the machine framebreasting position, thus-permittinguaswinging-1":(Fi;%=3); Byadjustingthes'crew 210 the rel-a: 25 movement 'of the jack zll withinthe hrnits pre-A t cmmm of t .base .Of. t h a :2 nl scribed by the guider-o1ls 254uand thef forw-ard the'upper rf of the vzspm be det inextremity of the jaok base -The guide irolls.254i e Y V y w v yhelpivotedllpon p fi Thka jack Zfmaybe-of any usualconstructionn jec pwadly-'fromtheends" of-a yoke126fll As illustratedi -the jack comprises-a,toesupport Q -(Fig. D whieh in turn is secured to thiiorward 3212 (Fig.27- mounted on a shank 214 "arranged. l 3

end o'fa lever 2S 2 (Fig--3) whi h-* w tmswingMDOn the jack arm 216.Verticalade limit theflownward movementofithefiackiunder justmentzof thetoe support 212 may be effected the thrust 'of the power spring 34Whichtalkesfli bylgljding t u znit r t pjvot blok effectafter the-Jackhas been moved=..in:and the 1 zjaiandnthe t us may damped i m t 35* hee1post 28 i has been broughttintowvertical justed: po ition by hand screwgggxm 1y W alinement with the forward end'of :thelever 2621*Lranged t'0b1ingmthe Shank 1 m clamping, The lever:zz is'pivoted at 263:to the;machine gagement with arcuate ribs 282- formed in the framemln order topreventrotation'of'the'y0ke arm 216. The heel post 284" is mounted in a25mg, grOOVGEEA (Fi-g. 4)'is iormedl in its lrea vertical hole in thejack base and supported surfa'ce for engagementwithitheforward enduoftherein byengagement of 1 a shouldered-Surface i the'-1ever-262;Thmovement of the lever 232a 0f-13helpostwjjh;a, Seat q fl ntuincidental to the downwardfimovement of the l t n t ozga lformedqn t eja kulba m S s d-"by thele gagement 0f: the The heel post 284 isprovided at itsupper end links I60 iwithla c m i block ee (Fig'. 2).-with a short tapered last pin 2881Which permits 45-T1i1ink5Wmconnect'thelealward fi a sho'e to be maintained in a horizontal posimlev'er 262 -and the shank 58 o y e 6-- tionduringthe swinging of thejack incidental pp ends of n snlsuware arrane dwtdthe transverseadjustment of -the shoe -relato engage the clampingblocki zfifi': (Figs:2 and "tively to the breasting knife.

Wat Opposite sides'loif itslpivot fi b Inorder to adjust thepreliminaryelevation of misuring an equaliclampine p e of lmks'lth'eQknifetQ peTmit its cutting edge tobeem w: lfifi again'st theclampingblocmw ployedyas gage determine the ,breastmg The engag ent ofthe base of the ja k w =position Ora shoe a stop 281-is provided(Figs-1) the lever 262 as a shoe is clamped in hreastmg'vfar-determining th 11 m of t urmardlmoveposition by the powerspring 3,-Op r t to p ement of theknifeactuator 24 by the torsionventdisplacement of the jack afterthe' shoehas spring. The 513011281 1adjusted t l by h I 60' incidental to the adjustment of .sthe': heelbeen soclamped, and the cutting thrust 'of "thea hand screw 289mountedin a'tapped hole in kn'ife operates to increase theforceofthe'clamp u bracket ggg t forwardly ff n-the-ma ingengagem 0f the JHPOIYSaId-IBVCTV kchine frame'. The 'screw 28:! "isinclined out- I Theaction of the C p i ngflf wardlydnorder to providesufficient clearance I60 6 fl s 1 also; i g ggfig z for a hand wheel 292 secured at its upperend. 60* 3 pint ee engaging p051 Ion v i t t v The stop 281'has a yoke,296formed integrall 1-. thelponnectionjof.Jtheyoke msflwlthjfllleitherewith and pivoted-to thev screw 289. Th: 3 In r to .a'cfzommodate Wg stopmflfl is preferably .arrangedto engagewthe a block "266 to theswmglngmovementof the -11nks' hub oflone :Of the links: 80 w ich Iconnect the t ijoflmi Shoeiito ttorsion-spring 5D-and. theactuator- 24wiizg i gfiff gzi 233: 322? Fig-332) are Referringnowwto; the clutchingmechanismsz-v formed in'theunderside ottheclarhpingblockt -1 a 0 0 anyusuahcomforeng'agement with the ends of the linksnl60;! tm0t10n,XamD16n0ne0fth Hol'tfln pe, {1

*th'e-1'ad'lus of curvature of saidzeurfaces bein providedkfor'connectmg the wheel and 70 substantially the sameas themadiu i u o wdrivingishaft 4i). When the machine is at rest describedby the ends of:theilinks i505 Thus: it Ethe clutch wfl is maintained inunclutchedconwillzibe seennthat a constantrspaced relation is ditionloya stop arm'fim securedtoa rock shaft maintained lbetweenvthd upperends ofwthe 304 and arrangecl to engage' under a projectionon the togglebearing 323 and arranged to be enpurpose of illustration let it beassumed "bring the cutting edge of l the shank presser disengaged fromthe projection 306 by the treadle '90 after the treadle has brought theshank presser 28 into shank engaging position. The stop arm 332 isautomatically returned to operative position before the driving shaft 40has completed one rotation. The return of the stop arm 302 is effectedby mechanism comprising a cam 3.68 (Fig. l) secured to the driving shaft40 and arranged to straighten the toggle 3H], 3E2 by engagement with anextension 3M of the toggle link 3| 2.- Straightening of the toggleswings an arm 3H5 secured to the rock shaft 304 rocking said shaft in adirection to return the stop arm 302 into position to be engaged by theprojection 303 of the clutch 360 whensaid projection reaches itsstarting position. In order that the treadle 93 may operate to break thetoggle 3H], 3| 2 and thereby actuate the rock shaft 304 to disengage thestop arm 332 from the projection 306, a catch lever 3! is pivoted gagedby .a plate 322 secured to the treadle. The engagement of the plate 322with the catch lever 3|8 is timed to take effect after the treadle hasbrought the shank presser into engagement with the shank of the shoe tobe breasted. The

catch lever is maintained in position to be engaged'by the plate 322 bya spring 324 whichoperates to maintain the upwardly extending arm of thecatch lever in engagement with the hub of the toggle link 3| 0. ates tomaintain the condition determined abutment screw 326 carried by thetoggle link 3l0 with a stop 328 formed in the machine frame. In order todisengage the catch lever 3l8 from the plate 322 and permit thestraightening of the toggle in advance of the retraction of the treadle,the catch lever is provided at its upper end'with a pin 33B extendingforwardly into a position to be engaged by the cam 308 at an early stagein the rotation of the driving shaft.

The rotating assembly is brought to rest at the end of a cycle ofoperations by a brake shoe 332 arranged to be engaged by an eccentric334 fixed to the driving shaft 40. The brake shoe is pressed against theeccentric 334 by a spring 336 connecting the brake lever 333 and themachine frame, the range -of movement of the lever 338 being limited bya sleeve 340 carried by the spring 336 and arranged to abut the stud342.

The operation is as follows: Preliminary to the depression of thetreadle 9B the breasting knife 20 may be adjusted by the hand wheel 292to the knife into the desired elevation for gaging the breastingposition of the shoes to be operated upon. The jack 28 is then movedrearwardly of the machine with a shoe to be breasted mounted thereon.(For the that the shoe to be breasted is a ladys shoe having a heel ofaverage height). If desired, theshoe is now adjusted transversely of theknife by swing- The spring 324 also opertoggle in a straightened ing thejack about its fulcrum 234. The treadle may now be operated to depressthe actuator knife and the heel tread plate are arrestedby the heeltread. The actuator 24 and the knife slide 56 are now in the positionillustrated in Fig. 11. After the breasting knife and heel plate havebeen arrested by engagement with the heel tread,

by the engagement of the,

26 descends alone until the.

presser foot engages the shank. Depression of slide, the extent of suchsliding movement depending upon the height of the heel to be breastedand the adjustment of the breasting knife. At the termination of saidsliding movement the actuator 24 is positioned, relatively to the knifeslide 56, as shown in Fig. 12, the position of the slide remaining thesame as in Fig. 11. Continued depression of the treadle 90 after theshank presser has been brought into contact with the shoe breaks thetoggle 310, 3I2 thereby rocking the shaft'394 and thus disengaging thestop arm 302 from the clutch 300 and permitting the clutch to connectthe wheel 38 to the shaft 40. During the initial stage of the rotationof the driving shaft'4ll the pawl carrier I18 is actuated by its cam 208to bring the pawls I70 into operative position, and thereupon the cam222 releases the'spring 34 sufiiciently to permit it to clamp the shankpresser and heel plate upon the shoe to be breasted. The clampingpressure imparted to the presser and heel plate by the spring 34operates to bring the base of the heel post 284 into clamping engagementwith theupper surfaceof the lever 262 at its forward end, and throughthe actuation of said lever, the spring 34 operates to bring the linksI60 into clamping engagement with the clamping block 266. At this stagein the operation of the machine the actuator 24 is in a positionrelative to the knife slide 56 such as that shown in Fig. 13, theactuator having advanced from its position, as shown in Fig. 12, anamount equal to the depression of the shank presser 25 by the spring 34.During the continued rotation of the driving shaft after the clampingoperations have been effected the cam roll H3 rides off the rise of thecam I08 thereby permitting the spring N32 to bring the wing nut 46 intocontact with the clamping block 16, and the downward movement of theclamping block with thecrank pin 42 clamps ersing its lost motion(indicated at A in Fig.

l3), and during the remainder of the advancing stroke of the crank pin,imparting a measured cutting thrust to the breasting knife. It will beseen that the knife decelerates as the crank pin 42 approaches thebottom of its stroke and comes to rest as the crank pin arrives at deadcenter. Consequently, the knife slide has no appreciable momentum as itcomes to rest at the end of its advancing stroke and, therefore, thereis no tendency of the knife slide to overthrow and carry the breastingknife beyond the base of the heel. The actuator and knife slide are nowin the position illustrated in Fig. 14. Dur ing the return of the crankpin from dead center to its initial position the clampng block 16travels slightly in advance of the Wing nut 46 leaving the nut free torotate upon the screw 44 in order to return to its elevated position.During the same interval the cam roll 2l4 rides off the rise-of the cam2B8, thereby permitting the spring 200 to retract the pawl carrier H8,thus disengaging the pawls I10 from their ratchets. After the retractionof the pawls I70 the torsion spring 50 operates to retract the knifeactuator 24 and with it the breasting knife 20,.

the shank presser 26 and the heel tread plate 32. As the driving shaft40 approaches the end ofits rotation the cam 222 actuates' thetriangular lever 216 to return the sliding, head 86 and the pawlassembly to elevated position, and simultaneously to compress the spring34. As the crank pin 42 arrives at its initial position-the stop arm 302engages the projection 306 of the clutch 30B, thereby disconnecting thewheel 38 from the driving shaft ill, and at the same time the eccentric334. engages the brake shoe 332 and arrests the movement of the rotatingassembly.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent of the United States is:

1. In a heel breasting machine, a breasting knife, and a knife actuatorarranged to provide a variable lost motion between the actuator and theknife at the beginning of the stroke of the actuator. I

2. In a heel breasting machine, a breasting knife, and a constant strokeknife actuator arranged to provide a measured lost motion, between theactuator and the knife at the-beginning of thestroke of the actuator.

3. In a heel breasting machine, a breasting knife, a knife actuatorhaving a constant stroke, and connections between the actuator and theknife for imparting a variable stroke to the knife, said knife stroketerminating simulta: neously with the stroke of the actuator.

4. In a heel breasting machine, a breasting knife, a knife support, aknife actuator arranged to impart a variable stroke to the knifesupport, said stroke terminating simultaneously with the stroke of theactuator.

5. In a heel breasting machine, a breasting knife, 2. driver forimparting a variable stroke, to the knife, and connections between thedriver, and the knife whereby the knife comes to rest at one limit ofthe stroke of the driver.

6. In aheel breasting machine, a breasting knife, a crank for impartinga variable stroke to the knife, and-connections between the crank andthe knife whereby the knife comes to rest as the crank comes to onelimit of its stroke.

7. In a. heel breasting machine, a breasting knife, a crank forimparting a variable stroke to the knife, and connections between thecrank and the knife whereby the knife decelerates as it approaches thelimit of thebreasting cut and comes to. rest as the crank comes to onelimit of its stroke. f 8. In a power operated heel breastingmachine, abreasting knife, aknife actuator having a constant power stroke,connections between the actuator and the knife for imparting avariablestroke to the knife, said knife stroke terminating simultaneously withthe stroke of the. actuator, and connections between the actuator andtheshank of the shoe to be breastedfor predetermining the positionfromwhich the power stroke of the actuator commences. 9. In a heelbreasting machine, a breasting knife, a knife actuator having a.constant stroke, connections between the actuator and the knife forimparting: a variable stroke to the knife, a shank engaging means, andconnections between said shank engaging means and the actuator forpredetermining the position from which the actuator operates. i

10. In a heel breasting machine, a breasting knife, a knife support,means for adjusting the knife relatively to its support, a knifeactuator having a constant stroke, connections between the actuator andthe knife for imparting a. variable stroke to the knife, a shankengaging member, and connections between said member and the actuatoroperable in conjunction with said knife adjusting means to predeterminethe position from which the actuator operates.

11. In a heel breasting machine, a breasting knife, a slide in which theknife is secured, a knife actuator having a constant stroke, connectionsbetween the actuator and the slide for imparting a variable stroke tothe slide, a shank engaging member, and connections between said memberand the actuator for predetermining the position from which the actuatoroperates.

12. In a heel breasting machine, a breasting knife, a knife actuator, ashank engaging member, and connections from said member for measuring,in advance of the knife stroke, the effective stroke of the actuator.

13. In a heel breasting machine, a breasting knife, a .knife slide, anda knife actuator mounted in said slide and arranged for measuredmovement relatively to said slide.

14. Line heel breasting machine, a breasting knife, a knife actuator,means for adjusting the actuator in the direction of its stroke, and aknife slide upon which said actuator operates, said actuator andslidebeing arranged for relative movement in the direction ofthe knifestroke.

15. In a heel breasting machine, a breasting knife, a knife actuator,means for adjusting the actuator-in the direction of its stroke, a knifeslide upon which said actuator operates, said actuator and slide beingarranged for relative movement in the direction of the knife stroke, andmeans for determining the limit of the adjustment of the actuator.

16. In a heel breastingmachine, a breasting knife, a knife actuatorarranged to be adjusted in the direction of its stroke and a shank engaging member arranged to measure the adjustment of the actuator.

17. In a heel breasting machine, a breasting knife, a knife actuatorarranged for adjustment in the direction of its stroke, and a knifesupporting slide supported in its retracted position 'by said actuatorand arranged-to descend with the actuator during its adjustment until thknife is arrested by the heel tread.

18. In a heel breasting machine, a breasting knife, a knife actuatorarranged for adjustment in the direction of its stroke, a knifesupporting slide sup-ported in its retractedposition by said actuatorand arranged to descend with the actuator during its adjustment untilthe knife is arrested by the heel tread, and means for adjusting theknife relatively to the, slide in order to vary the point in theadjustment of the actuator when the knife is arrested by the heel tread.19. In a power operated heel breasting machine, a breasting knife, aknife actuator, manually operated means for adjusting the actuator inthe direction'of its stroke, a driver, and means for comiecting theactuator to said driver.

20. In a poweroperated heel breasting machine, a breasting knife, aknife actuator, a driver, means for connecting the actuator to saiddriver comprising a. screw carried by the actuator, a nut carried bysaid screw, connections between said driver and said nut, and means forlocking, the nut upon said screw.

-21.' In a" power operated heel breasting ma chine, a breasting knife, aknife actuator, manually operated means for adjusting the actuator inthe direction of its stroke, a driver, and connections between thedriver and the actuator comprising a screw carried by the actuator, anut-carried by the screw and arranged to be rotated by the actuatorduring its adjustment, and a connecting link between said driver andsaid nut whereby said nut is locked against rotation thus connectingsaid link to said screw.

22. In a power operated heel breasting machine, a breasting knife, aknife actuator, a driver, connections between the driver and theactuator comprising a screw carried by the actuator, a nut carried bythe screw, a link carried by the driver and supported upon the Screw,inter-engaging clamping surfaces formed in the link and the nut, meansfor holding said clamping surfaces disengaged, and yielding means forurging said clamping surfaces into clamping relation.

23. Ina power operated heel breasting machine, a breasting knife, aknife actuator, a driver, connections between the driver and theactuator comprising a screw carried by the actuator, a nut carried bythe screw, a link carried by the driver, interengaging clamping surfacesformed in the link and the nut, cam actuated means for holding saidclamping surfaces disengaged, and yielding means for urging saidclamping surfaces into clamping relation. 24. In a power operated heelbreasting machine, a shank presser, means energized by the nextpreceding cycle of the machine and normally disconnected from saidpresser for applying pressure-thereto, and means for connecting saidpresser to said pressure applying means at the beginning of the powercycle.

25. In a heel breasting machine, a breasting knife, a knife actuator, ashank presser, and means energized by the next preceding cycle of themachine for applying pressure to said presser before the stroke of theactuator commences.

26. In a power operated heel breasting machine, a shank presser, apresser post, means energized by the next preceding cycle of the machinefor applying pressure to said post, and means for connecting said postto said pressure applying means at the beginning of the power cycle.

27. In a power operated heel breasting machine, a shank presser, apresser post, means for applying power produced pressure to said post,and means for connecting said post to said pressure applying means atthe beginning of the power cycle comprising a pawl and ratchetconnection normally held disengaged, and power operated means forengaging said pawl and ratchet.

28. In a heel breasting machine, a shank presser, a presser post, a heeltread plate, a heel plate post, and connections from the presser postfor supporting the heel plate post and for preventing rotation of thepresser post.

29. In a heel breasting machine, a shank presser, a presser post, asupport in which said post is slidably. mounted, connections betweensaid support and a source of power, and means for releasably connectingsaid support and said post.

30. In a heel breasting machine, a shank presser, a presser post, a headin which said post is slidably mounted, connections between said headand a' source of power, and pawl and ratchet connections between saidhead and said post.

31. In a heel breasting machine, a shank presser, a presser post, a headin which said post is slidably mounted, a ratchet formed in said post,

a pawl arranged for engagement with said ratchet, a pawl carrier mountedin said, head, means for actuating said carrier to engage said pawl andratchet, and means for actuating said head.

32. In a heel breasting machine, a shank presser, a presserpost, a headin which said post is slidably mounted, a ratchet in said post, a pawlarranged for engagement with said ratchet, and means 'for disengagingsaid pawl from said ratchet.

33. In a power operated heel breasting machine, a shank presser, a heeltread plate, and means for applying equal power produced pressures tosaid presser and plate.

34. In a power operated heel breasting machine, a shank presser, a heeltread plate, and a power actuated spring for applying distributedpressure to said presser and plate.

35. In a power operated heel breasting machine, a shank presser, a heeltread plate, and a power actuated spring for applying equal pressure tosaid presser and plate.

36. In a heel breasting machine, a shank presser, a heel tread plate,means for applying pressure to said presser and plate, and means forequalizing the pressure applied to said presser and plate.

37. In a heel breasting machine, a shank presser, a presser post, a heeltread plate, a heel plate post, and means for applying distributedpressure to said posts.

33. In a heel breasting machine, a shank presser, a pressezi post, aheel tread plate, a heel plate post, a head in which said posts areslidably mounted, connections between said head and a source of power,and releasable connections between said head and said posts.

39. In a heel breasting machine, a shank presser, a presser post, a heeltread plate, a heel plate post, a head in which said posts are slidablymounted, connections between said head and a source of power, and pawland ratchet connections between said head and said posts.

40. In a heel breasting machine, a shank' presser, a presser post; aheel tread plate, a heel plate post, a head in which said posts areslidably mounted, a link connecting said head to a source of power, andpawl and ratchet connections between said head and said posts includinga pawl carrier arranged for movement to equalize the pressure exerted onsaid pawls.

41. In a heel breasting machine, a shank presser, a presser post, a heeltread plate, a heel plate post, a head in which said posts are slidablymounted, ratohets on each of said posts, pawls arranged for engagementwith said rat chets, a pawl carrier mounted in said head, a link securedto said head, and means for applying pressure to said link.

42. In a heel breasting machine, a shank presser, a presser post, a heeltread plate, a heel plate post, a head in which said posts are slidablymounted, ratchets in each of said posts, pawls arranged for engagementwith said ratchets, a pawl carrier mounted in said head, a link securedto said head, means for applying pressure to said link, and means fordisengaging said pawls from their respective ratchets.

43. In a heel breasting machine, a shank presser, a presser post, a heeltread plate, a heel presser, ta presser post,-wa heel tread plate, a

heel plate post, a head in which said posts are qslidably'mounted, andine-ans for securing said postsagainst upward movement comprisingratchets on said posts, pawls for engaging said ratchets, pendants inwhich said, pawls are mounted, a pawl carrier on which said pendants arepivoted, said carrier being so mounted in said head that a downwardpressure imparted to said head imparts an equal pressure to said pawls.

44. In a heel breasting machine, a shank plate post, a head in whichsaid posts'are *slidably mounted, means for securing said posts againstupward movement comprising ratchets on said posts, pawls for engagingsaid ratchets, pendants in which said pawls are mounted, a pawl carrieron which said pendants are pivoted, means for maintaining said pendantsin alinement with said posts, and means for pivotally [mounting saidcarrier on said head whereby a downward pressure imparted to saidheadimparts an equal pressure to said pawls. 45. In a heel breastingmachine, a shank presser, a presser post, a heel tread plate, a heelplate post, a head in which said posts are slidably mounted, and meansforsecuring said posts against upwardmovement comprising ratchets onsaid posts, pawls for engaging said ratchets, pendants in which saidpawls aremounted, a pawl carrier on which said pendants are pivoted,guides formed insaid pendants for engagement with said posts wherebysaid pendants are maintained in alineinentwith said posts. 1 i I I '46,In a heel breasting machine, a shank presser, a presser post,'a heeltread plate, a heel plate post, a head in whichsaid posts are slidablymounted, connections between saidposts and said head comprising in whichsaid pawls' are mounted at opposite sides thereof, and a carrier shaftmounted in said head and arranged midway between said pawls. A

47. In a power operated heel breasting machine, a shank presser, a heeltread plate, means for applying power produced pressure to said presserand plate, and means for connecting said presser and plate to said powerapplying means at the beginning of the power cycle.

48. In a power operated heel breasting machine, a shank presser, apresser' post, a-heel tread plate, a heel plate post, means for applyingpower produced pressure to said posts, and means for connecting saidposts to said pressure chine, a shank presser, a presser post, a heeitread plate, a heel plate post, means for applying power producedpressure to said pos ts means for connecting said posts to saidpressureapplyingmeans at the beginning of the power cycle comprising pawl andratchet connections normally held disengaged, and power operated 'meansfor engaging said pawls and their ratchets.

50. In a power operated heel breasting ma chine, a shankpresser, apresser post, a heel tread plate,'a heel plate post, means forapplyingpower produced pressure to said posts, means,

for connecting said posts tosaid pressure applyingmeans at the beginningof the power ratchets in said posts, pawls for engaging said ratohets, apawl carrier cycle comprising "pawl and ratchet connections normallyheld I disengaged, and cam actuated means for engaging said pawls andtheir ratchets."

51. In a power operated heel breasting machine, a shank presser, apresser post, a heel tread plate, a heel plate post, a head in whichsaid posts are slidably mounted, ratchets on said posts, pawls carriedby said head and arranged for engagement with said ratchets, yieldingmeans for holding said pawls out of ratchet engaging position, andpoweroperated means for bringing said pawls into ratchet engaging position.

52. In a heel breasting machine, a breasting knife, a knife slide inwhich the breasting knife is mounted, yielding means for holding theknife slide in retracted position, and means for adjusting the retractedposition of the slide.

53. In a heel breasting machine, a breasting knife, a knife slide inwhich the breasting knife is mounted, a spring for retracting the slide,a stop for limiting the operation of the spring, and means for adjustingthe stop in order to vary the retracted position of the slide.

54. In a heel breasting machine, a shoe supporting jack yieldinglysupported and arranged for straight line movement toward and fromoperative position; I

55. In a heel breasting machine, a shoe supporting jack, a jack carrierarranged to permit rotation of the jack about a horizontal axis extending longitudinally of the jack, and shoe bottom engaging means forclamping a shoe on the jack and thus holding the jack from rotatingduring the breasting operation.

56. In a heel breasting machine, abreasting knife, a shoe supportingjack, a jack carries arranged to permit a limited swinging movement ofthe jack whereby a jacked shoe is rendered laterally adjustable withrelation to the' 57. In a heel breasting machine, a shoe sup portingjack'yieldingly supported upon the machine frame and arranged forstraight line movement to carry a. jacked shoe into and out of breastingposition, and a stop for limiting downward movement of thejack. -'58. Ina heel breasting machine, a shoe sup porting jack, a jack carrier, andconnections between the jack and the carrier comprising a cylindricalmember secured to the jack and rollers journaled in the carrierconstructed and arranged to permit rotation of said "cylindrical member.I 59. In a heel breasting machine, a shoe supportingjjack, a. jackcarrier arranged to permit rotation of the jack abouta horizontal axisex- .tending longitudinally of the jack means for preventingsuchrotation when the jack is out of breasting position, and means forlimiting such rotation when the jack is in breasting portingjackarranged for rotation about a horizontal axis extending longitudinallythereof, and a pair of rollers arranged to engage the base of the jackat opposite sides thereof in order toi limit such rotation.

62. In a heel breasting machine, a shoe supporting jack arranged forrotation about a horizontal axis extending longitudinally thereof, meansfor preventing such rotation when the jack is out of breasting positioncomprising ribs formed at the base of thev jack, and a pair of rollersarranged to engage said ribs, said ribs being terminated at theirforward extremities in order to permit a limited swinging movement ofthe jack when in breasting position.

63. In a heel breasting machine, means for supporting a shoe inbreastingposition, cornprising a toe support, a heel support, and a heelstop arranged partially to embrace the back of a. heel tobe breasted.

'64. In a heel breasting machine, means for supporting a shoe inbreasting position, comprising a toe support, a heel'support, and a heelstop arranged to engage the back of the heel and yieldingly urgedthereagainst. I

'65. In a heel breasting machine, means for supporting a shoe inbreasting position comprising a toe support, a heel support, ,a stoparranged to engage the backv of a heel, and means actuated by thecutting thrust of the knife to lock the stop in heel engaging position.

66. In a heel breasting machine, means for supporting a shoe inbreasting position including a heel stopv constructedand arranged forengagement with the back of the heel to be breasted, yielding means forurging the stop toward the heel, and means for securing the stop in heelengaging position.

67. In a heel breasting machine, means for supporting a shoe inbreasting position including a heel stopconstructed and arranged forengagement with the back of the heel to be breasted, yielding means forurging the stop toward theheel, and means'actua'ted by the cuttingthrust of the knife for locking the stop in heel engaging position.

68.v In a heel breasting machine, means for supporting a shoe inbreasting position including a stop constructed 'and'arranged for engagement with the back of the heel to! be breasted, means for. clampingthe stop in heel engaging position. comprising clamping elements, andmeans actuated by the cutting thrust of the knife for imparting aclamping action to said clamping elements.

69. In a heel breasting machine, means for supporting a shoe inbreasting position including a stop constructed and arranged forengagement with the back of the heel to be breasted, means for clampingthe stop in heel engaging position comprising clamping elements one ofwhich is movable with the stop, connections between the stop and saidmovable element, and a jack supporting lever connected at one end tosaid movable clamping element whereby the cutting thrust of the knifeimparts a clamping action to said clamping elements.

70. In a'heel breasting machine, means for supporting a shoe inbreasting position including a stop constructed and arranged forengagement with the back of a heel to be breasted, and means forclamping the stop in shoe engaging position comprising relativelyadjustable clamp-' ing elements, and connections between the stop andone'of said elements whereby said clamping elements are adjusted by amovement imparted to the stop.

'71. In a heel breasting machine, means for supporting a shoe inbreasting position including a stop constructed and arranged forengagement with the back of a heel to be breasted and normally held atthe forward limit of its movement, means for clamping the stop in shoeengaging position comprising relatively adjustable clamping elements,and connections between the stop and one of said elements whereby saidclamping elements are adjusted by a movement imparted to the stop.

'72. In a heel breasting machine, a heel tread plate for engagement withthe tread of the heel to be breasted, and means for supporting a shoe inbreasti g position comprising a toe support, a heel support, and a heelstop constructed and arranged partially to embrace the back of a heel tobe breasted and supported upon the heel tread plate.

73, In a heel breasting machine, a heel stop arranged to engage the backof a heel to be breasted and arranged for self adjustment to theinclination of the rear face of the heel.

74. In a heel breasting machine, a heel stop arranged to engage the backof a heel to be breasted, and a carrier in which the stop is pivotallymounted whereby the stop is self adjusting to the slope of heel.

75. In a heel breasting machine, a heel stop arranged to engage the backof a heel to be breasted, a carrier in which the stop is pivotallymounted, and means for limiting the rotation of the stop whereby theheel engaging surface is always presented to the heel.

76. In a heel breasting machine, a heel tread plate, a heel stoparranged to engage the back of a heel to be breasted, a carrier in whichthe stop is pivotally mounted, and supporting connections between saidcarrier and heel tread plate.

77. vIn a heel breasting machine, a shoe supporting jack, and means forclamping a shoe upon the jack comprising a shank presser, a heel treadplate, and a heel stop.

.78. In a heel breasting machine, a shoe supporting jack, and means forclamping a shoe upon the jack, comprising a shank presser, a heel treadplate, a heel stop, means for simultaneously actuating said presser andplate, and means for yieldingly urging the stop against the back of theheel.

79. In a heel breasting machine, a shoe supporting jack, and means forclamping a shoe upon the jack, including a shank presser, a heel stop,means for actuating said presser, and means for yieldingly urging thestop against the back of the heel.

80. In a heel breasting machine, a shoe supporting jack, means forclamping the shoe upon the jack including a heel stop, and yieldingmeans for urging the stop against the back of the heel.

81. In a heel breasting machine, heel engaging means arranged to engagethe back of a heel to be breasted, and yielding means whereby the heelengaging, means is positioned to be engaged by the heel position. 7

82. In a heel breasting machine, a heel engaging member arranged toengage the back of a heel to be breasted, yielding means whereby saidmember is positioned to be engaged by the heel as it advances intobreasting position, and

as it advances into breasting I ineansfor locking s'aid member-after theshoe porting jack, and means for clampinga shoe.

, the. cutting thrust of has been brought into breasting position-'- 83.In a heel breasting machine, a breasting knife, a heel stop arrangedto-eng'age the back of: a heel to be breasted,-yieldin'g means wherebythe stop is positioned-to be engaged by-theheelas it advancesinto-breasting position, andmeans actuated by the cutting thrust of theknife for locking the stopafter the shoe has been brought into breastingposition. i

84. In. aheel breasting machine a shoe sup porting jack, and means forclampinga shoe thereon comprising a shank presser, power operated meansforactuating said pressed, and a heel stop. arranged to engage the backoflthe heel and yieldingly urged thereagainst; w

'85. Inaheel breasting machine, a shoe. sup

thereon comprisingashank presser, a heel tread plate, means forsimultaneously applying. a a clamping pressure to said presser andplate, and a heel stop arranged'to engage the back of the heel andyieldingly urged thereagainst.

i 86. In a heel breasting machine, a shoe sup-- porting jackymeans forclamping a shoe thereon comprising. a shank presser, a heel treadplatd;means forv applying. an equal clamping. pressure to said presser andplate, andxa heel stop arranged to engage the back of the heel andyieldingly urged thereagainst; a I

87. In a heel breasting machine, a shoe supporting jack, a heel stop,and means actuated by theknife for locking the heel stop in heelengaging position.

88. In a heel breasting machine, a shoe supporting jack, a heel stop,and means actuated by the cutting thrust of the knifefor simultaneouslyclamping the jack in breasting position and locking the heel stop inheel engaging position.

89. In a heel breasting machine, a shoe supporting jack, a heel stop,means actuated by the cutting thrust of the knife for simultaneouslyclamping the jack in breasting position and looking the heel stop inheel engaging position, said means comprising a lever arranged to beactuated by the jack, clamping surfaces formed in the lever and jack,clamping devices arranged to be actuated by said lever, and connectionsbetween said devices and the heel stop.

90. In a heel breasting machine, a shoe supporting jack, a heel stoparranged to engage the.

shoe is brought into breasting position, and

means actuated by the cutting thrust of the knife for simultaneouslyclamping the jack in breasting position and locking the stop in heelengaging position.

91. In a heel breasting machine, a breasting knife, a shank presser, aheel tread plate, and yielding means for holding said members inretracted position.

92. In a heel breasting machine, a breasting knife, a knife actuator,yielding means for holding the actuator in retracted position,connections between the actuator and the knife for holding the knife inretracted position, a shank presser, and connections between theactuator and the presser for holding the presser in retracted position,

93. In a heel breasting machine,.a breasting knife, a knife actuator,yielding means for holding the actuatorin retracted position, a shankpresser, a presser post, connections between said post and the actuatorfor holding the presser retracted position, a heel tread plate, andconnections between the heel tread plate and said post for holding theplate in retracted position.- 94. In a heel breasting machine, abreasting knife, a knife actuator, a driver for impartinga constant.stroke to said actuator, yielding means. mounted'on the driver forholding the actuatorzinretracted position, connections between theactuator and the knife forholding the knife in retracted position, ashank presser, a presser post, connections between the actuator and:saidupost for holding the presser in retracted position, a heel treadplate, and connections between .said post and the heel tread plate forholding the plate in retractedposition. .95*.-.In' a power operated heelbreasting. machine, ashank presser, a spring foractuating said presser,and power actuated means for en-= ergizing said spring at the end of themachine.

cycle.

96. In a power operated heel breasting machine, a breasting knife, ashank presser, a spring for actuating said presser, andpower actuatedmeans for. energizing said spring during 98. In a power operatedheelbreasting machine, a breasting knife, a shank presser, ac-

tuating means therefor, and a driver for successively releasing saidpresser actuating means and actuating said knife.

99. In a power operated heel breasting machine, a breasting knife, ashank presser, a spring, means operable to connect the spring and thepresser, and a driver for successively actuating said connecting means,releasing said spring and actuating said knife.

100. In a power operated heel breasting machine, a breasting knife, ashank presser, a spring, means operable to connect the spring and thepresser, and a driver for successively actuating said connecting means,releasing said spring, actuating said knife, and energizing said spring.

chine, a breasting knife, a knife actuator, a,

driver therefor, and a treadle for successively imparting a preliminaryadjustment to said actuator and connecting said driver to a source ofpower. I I

102. A heel breasting machine having, in combination, a breasting knife,a shoe supporting jack arranged for straight line movement to bring ajacked shoe into position tobe operated upon by the knife and arrangedfor movement to permit lateral adjustment of the shoe relatively to theknife, a shank presser, a heel tread plate, means for. applying pressureto said presser and plate, a knife actuator, a driver therefor, andconnections between the actuator and the knife for imparting a variablestroke thereto.

103. A heel breasting machine having, in complate, aknife actuator, adriver therefor, and

connections between the actuator and the knife for imparting a variablestroke thereto.

104. A heel breasting machine having, in combination, a breasting knife,a shoe supporting jack, means for preliminary adjustment of the knife inthe direction of its stroke, a shank presser, a heel tread plate, meansfor applying pressure to said presser and plate, and means for'impartinga variable stroke to the knife.

105. A heel breasting machine having, in combination, a breasting knife,a shoe supporting jack, a shank presser, a heel tread plate, means forimparting equal pressure to said presser and plate, means for varyingsaid pressure, and means for actuating the knife.

106. A heel breasting machine having, in com-' bination, a-breastingknife, a shoe supporting jack, a shank presser, a heel tread plate, anactuator for imparting a variable stroke to the knife, and yieldingmeans for holding the knife, the actuator, the presser and the heeltread plate in retracted position.

107. A heel breasting machine having, in combination, a breasting knife,a shoe supporting jack, a shank presser, a heel tread plate, an actuatorfor imparting a variable stroke to the knife,yielding means forholdingthe knife, the actuator, the presser and the 'heel tread plate inretracted position, and means for limiting the operation of saidyielding means in order to predetermine the retracted positions of saidmembers.

108. A heel breasting machine having, in combination, a breastingvknife, a shoe supporting jack, means for clamping a shoe on the jackcomprising a shank presser, a heel tread plate, a heel stop, means forapplying pressure to said presser, plate and stop, and means forimparting a variable stroke to theknife.

109. A heel breasting machine having, in combination, a breasting knife,shoe supporting means comprising a toe support, a heel support and aheel stop, a knife actuator, driving means therefor, and connectionsbetween theactuator and the knife for imparting a variable strokethereto.

110. A heel breasting machine having, in combination, a breasting knife,a shoe supporting jack arranged for movement to bring a jacked shoe intoposition to be operated upon by said knife, a shank presser, means forimparting pressure thereto, a knife actuator, and connections betweenthe presser. and the actuator for measuring the effective stroke of theactuator.

111. A heel breasting machine having, in combination, a .breastingknife, a shoe support, a shank presser, means for applying pressurethereto, a knife actuator, connections between the presser-and theactuator for measuring the effective stroke of the actuator, a driverfor the actuator, and means for connecting the driver and the actuatorat a predetermined point in the operative cycle.

THOMAS H. SEELY. MILTON H. BALLARD.

